Renee Weber, Dialogues with Scientists and Sages -- The Search for Unity, (1986)

Historical Buddhist Fiction

Susan Carol Stone
The Kosambi Intrigue; A Tale in the Time of the Buddha (2012)The Jealous Heart: A Hundred Hues of Green in the Time of the Buddha (2016)
The Yes Sayers: Affirmation in the Time of the Buddha (2018)